Spring-hinge.



2 SHEETS-SHEET 1.

Patented May 10, 1910.

F. H. ELLIS.

SPRING HINGE.

APPLIGATION FILED JAN. 30, 1909,

F. H. ELLIS.

SPRING HINGE.

APPLICATION FILED JAN. 30, 1909.

Patented May 10, 1910.

2 SHEETS-BEBE! 2.

FEE ST FRANK H. ELLIS, OF CHICAGO, ILLINOIS.

SPRING-HINGE Specification of Letters Patent.

Patented May 19, 1910.

Application filed January 30, 1909. Serial No. 475,213.

To all whom it may concern:

Be it known that I, FRANK H. ELLIS, a citizen of the United States,residing at Chicago, county of Cook, and State of Illinois, haveinvented certain new and useful Improvements in Spring-Hinges, of whichthe following is a specification.

My invention relates to improvements in hinges and particularly tospring hinges for doors adapted to swing in both directions and whichshall normally maintain the doc-r in closed position.

The object of my invention is to provide an improved spring hinge of thecharacter mentioned by means of which the door may be readily hung.

A further object of my invention is to provide a device as mentionedwhich shall effectually close and maintain a close joint between thedoor and the jamb to which it is hinged.

A further object of my invention is to provide a hinge characterized asabove mentioned in which the spring portion may be readily inserted andattached after the door is hung and as readily removed withoutnecessitating the removing of the door.

Other objects will appear hereinafter.

With these objects in. view my invention consists generally in a pair ofsimilar cylindrical members adapted to be secured to the hinge edge of adoor and together being almost equal in height to that of the door. Thecylindrical members are secured to the door so that the ends of therespective portions are substantially flush with the upper and loweredges of the door or project slightly beyond the same, and the outerends of said members are provided with reduced cylindrical extensionswhich are adapted to enter sockets provided for them in the lintel andthe sill of the door frame, forming pivots for the door to swing upon.Arranged between the adjacent inner ends of said cylindrical members isa spring casing which is preferably cylindrical and co-extensive indiameter with said members. The spring casing is rigidly secured to thedoor jamb and extending axially through said casing is a spindle 14, theends of which are rigidly fixed in the respective ends of thecylindrical members attached to the door and hence rotates with themwhen the door swings. A pair of springs are arranged within the casingand coiled about the spindle in opposite directions, one end of each ofsaid springs being attached to the casing and the other end to thespindle 01' to a lug projecting therefrom.

lvly invention further consists in a device characterized as abovedescribed and of such construction that the spring casing and thespindle may be readily placed in position after the door is hung and asreadily removed when desired.

My invention further consists in various details of construction andarrangements of parts all as will be fully described hereinafter andparticularly pointed out in the claims.

My invention will be more readily understood by reference to theaccompanying drawings forming a part of this specification and in whichFigure 1 is an elevation of a door and door casing equipped with a hingeembodying my invention in its preferred form, Fig. 2 is a. detailvertical section of the hinge and a portion of the door casing or jamb,upon an enlarged scale, Fig. 3 is a horizontal section on the line so ofFig. 2, Figs. 4 and 5 are perspective views of brackets for detachablyand rigidly securing the cylindrical members to the door, and Fig. 6 isan inner end view of one of said cylindrical members.

Referring now to the drawings 1 indicates a door and 2 the jamb of thedoor frame adjacent the hinge edge of the door. Secured to the hingeedge of the door are pair of similar cylindrical members 4- which arepreferably formed of wood and attached to the door so that the endsthereof project slightly beyond the upper and lower edges of the door toabut the lintel and sill of the frame respectively. The outer ends ofthe members 4 are reduced in diameter forming extensions 11 which areadapted to enter sockets provided for them in the lintel and sill. Theprojections 11 are preferably formed upon metal caps 11 secured to theouter ends of the members 4: as shown clearly in Fig. 2, said caps beingof equal diameter with the members l. The edge of the door and theadjacent j amb are concavely formed to receive portions of the members4: and to maintain a tight joint between the door and the casing whenboth opened and closed.

The members 4 are detachably and rigidly secured to the door by brackets5 and 6, the former being secured to the door and the latter to therespective members 4: by screws or other suitable fasteners. Eachbracket comprises a base plate 7 having a plurality of screwperforations 8, and two pair of lugs extending outwardly atsubstantially right angles thereto. The lugs of each pair are paralleland the corresponding lugs of the adjacent brackets are adapted tointerlock and are held in interlocked position by screws 10.

The length of the members t is less than the height of the door leavinga space between the adjacent inner ends thereof, and in the space thusformed a cylindrical spring casing is arranged. The spring casing 16substantially fills the space between the inner ends of the members 4and is of equal diameter therewith. Extending axially through the casing16 is a spindle 14, the ends of which project beyond the ends of thecasing into the members 4 and are rigidly secured therein as by screws15. Arranged within the casing 16 and coiled about the spindle ll inopposite directions are a pair of helical springs 12 and 13. One end ofeach spring is secured to the casing 16 or a bar 24 fixedly mountedtherein, and the opposite end to the spindle 1a or a lug 26 projectingtherefrom.

Adjacent the casing 16, the door jamb 2 is provided with a recess inwhich is secured a bracket 20 having a pair of outwardly projecting earsor lugs 19. 18 indicates a pair of similar ears or lugs extending fromthe casing 16 into the recess in the jamb and secured to the lugs 19 byscrews 16. To remove the spring and spring casing it is but necessary toremove the screws 16 and 15, and to facilitate withdrawing the ends ofthe spindle 14 from the members 4 the ends of said members are providedwith the radially disposed sockets 22 to receive said ends. Tostrengthen the ends of the members 4 they are provided with the metalferrules or caps 23 which are slotted to correspond with the socket-s22. The upper end of the casing 16 is provided with a removable closure17 threaded there into and which gives access to the interior of thecasing for assembling the parts.

Having described my invention what I claim as new and desire to secureby Letters Patent is:

1. A door and door jamb in combination with a pair of cylindricalvertically disposed members of less length than the door respectivelysecured to the edge of the door at its upper and lower portions, saiddoor and said jamb being concavely formed to receive the same and theouter ends of said members being provided with projections adapted toenter sockets in the lintel and sill of the door frame, a spring casingseated in the space between said members and rigidly connected to saidjamb, a spindle extending axially through said casing and having itsends rigidly fixed in said members and a pair of springs oppositelycoiled about said spindle and having their opposite ends connectedrespectively to said spindle and said casing, substantially asdescribed.

2. A door and door frame including the lintel, jamb and sill, incombination with a pair of cylindrical members of less length than thedoor, brackets secured to said door and said members, means connectingsaid brackets whereby said members are detachably secured to the edge ofsaid door at its upper and lower portions, a spring casing seated in thespace between said members and rigidly secured to said jamb, a memberrotatably mounted in said casing and fixed to said members and a springconnecting said casing and said rotatably mounted member, substantiallyas' described.

8. A door and door frame including the lintel, jamb and sill, incombination with a pair of cylindrical members secured to the edge ofsaid door at its upper and lower portions and provided with reducedextensions on the outer ends thereof adapted to enter sockets in saidlintel and saidisill, a spring casing seated in the space between theadjacent ends of said members and rigidly secured to said amb,a spindleextending axially through said casing and having its ends securedrigidly in the ends of said cylindrical members, said members beingprovided with radially disposed sockets to receive the same and a springinterposed between said spindle and said casing, substantially asdescribed.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

FRANK H. ELLIS.

Witnesses:

HELEN F. LILLIS, JANET E. HOGAN.

